The !check45 Command: Select Non-45 Polys and/or Wires

Syntax: !check45 [p|w]

This will select polygons and/or wires in the current cell that have
an angle that is not an exact multiple of 45 degrees. If an argument
``p'' is given, only polygons are checked, or if the argument is
``w'' only wires are checked. Otherwise both polygons and wires
are checked. Only objects on visible, selectable layers are checked.